SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('843306a81f843854e36e2d20d051afda','0','3.129.87.138','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715550842','board.php?boardid=69&sid=5d95e7c621012a4ffca886b84555ac4b','0','0','')
mysql error: Duplicate entry '843306a81f843854e36e2d20d051afda' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 12.05.2024 @ 23:54
Script: /board.php?boardid=69&sid=5d95e7c621012a4ffca886b84555ac4b
Referer: http://wehrbauten.de/board.php?boardid=69&sid=5d95e7c621012a4ffca886b84555ac4b